Murray, N.J.,Phinn, S.R.、DeWitt, M.,Ferrari, R.、Johnston, R.、Lyons, M.B.,
Clinton, N.、Thau, D. & Fuller, R.A. (2019) The global distribution and
trajectory of tidal flats. Nature, 565, 222-225.
doi:10.1038/s41586-018-0805-8,
Murray, N. J. Phinn, S. P., Fuller, R. A., DeWitt, M.,Ferrari, R.、
Johnston, R.、Clinton, N.、& Lyons, M. B. (2022 年)。1984 年至 2019 年潮滩生态系统的高分辨率全球地图。Scientific Data,9(1)。
doi:10.1038/s41597-022-01635-5,
[null,null,[],[[["\u003cp\u003eThe Murray Global Intertidal Change Dataset provides global maps of tidal flat ecosystems based on a supervised classification of Landsat imagery from 1984 to 2016.\u003c/p\u003e\n"],["\u003cp\u003eThe dataset identifies tidal flats, permanent water, and other land cover types along coastlines between 60° North and 60° South.\u003c/p\u003e\n"],["\u003cp\u003eThe classification includes various tidal flat ecosystems like mudflats, sand flats, and rock platforms, but excludes vegetated areas like mangroves and marshes.\u003c/p\u003e\n"],["\u003cp\u003eThis dataset is available as a time-series of 11 global maps at 30m resolution, allowing for analysis of intertidal change over time.\u003c/p\u003e\n"],["\u003cp\u003eThe dataset is licensed under a Creative Commons Attribution 4.0 International License and requires proper attribution when used.\u003c/p\u003e\n"]]],[],null,["# Murray Global Intertidal Change Classification\n\nDataset Availability\n: 1984-01-01T00:00:00Z--2017-01-01T00:00:00Z\n\nDataset Provider\n:\n\n\n [Murray/UQ/Google/USGS/NASA](https://intertidal.app)\n\nCadence\n: 3 Years\n\nTags\n:\n[coastal](/earth-engine/datasets/tags/coastal) [google](/earth-engine/datasets/tags/google) [intertidal](/earth-engine/datasets/tags/intertidal) [landsat-derived](/earth-engine/datasets/tags/landsat-derived) [murray](/earth-engine/datasets/tags/murray) [surface-ground-water](/earth-engine/datasets/tags/surface-ground-water) [tidal-flats](/earth-engine/datasets/tags/tidal-flats) [uq](/earth-engine/datasets/tags/uq) \n\n#### Description\n\nThe Murray Global Intertidal Change Dataset contains global maps of tidal flat\necosystems produced via a supervised classification of 707,528 Landsat\nArchive images. Each pixel was classified into tidal flat, permanent water\nor other with reference to a globally distributed set of training data.\n\nThe classification was implemented along the entire global coastline\nbetween 60° North and 60° South from 1 January 1984 to 31 December 2016.\nThe image collection consists consists of a time-series of 11 global maps\nof tidal flats at 30m pixel resolution for set time-periods (1984-1986;\n1987-1989; 1990-1992; 1993-1995; 1996-1998; 1999-2001; 2002-2004;\n2005-2007; 2008-2010; 2011-2013; 2014-2016)\n\nThis product depicts tidal flat ecosystems around the global coastline.\n\nPixels classified as tidal flat in the analysis represent several types of\ntidal flat ecosystems, including unconsolidated fine-grain sediments (tidal\nmudflats), unconsolidated coarse-grain sediments (tidal sand flats), and\nconsolidated sediments, organic material or rocks (wide tidal\nrock-platforms), while excluding spectral signatures indicating the\npresence of vegetation dominated intertidal ecosystems such as mangroves\nand vegetated marshes. The analysis aimed to identify pixels that are\nsubject to regular tidal inundation, and therefore may also include other\nintertidal systems where intertidal dynamics are observable.\n\n### Bands\n\n\n**Pixel Size**\n\n30 meters\n\n**Bands**\n\n| Name | Units | Pixel Size | Description |\n|------------------|------------|------------|-----------------------------------------------------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| `classification` | occurrence | meters | Intertertidal area classification for the interval. |\n| Bitmask for classification - Bit 0: Intertidal area classification. - 0: Classified non-intertidal area - 1: Classified intertidal area ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||\n\n### Terms of Use\n\n**Terms of Use**\n\nThis work is licensed under a Creative Commons Attribution 4.0\nInternational License.\n\nAny use of the intertidal data must include proper acknowledgement,\nincluding citing the associated journal article.\n\n### Citations\n\nCitations:\n\n- Murray, N.J., Phinn, S.R., DeWitt, M., Ferrari, R., Johnston, R., Lyons, M.B.,\n Clinton, N., Thau, D. \\& Fuller, R.A. (2019) The global distribution and\n trajectory of tidal flats. Nature, 565, 222-225.\n [doi:10.1038/s41586-018-0805-8](https://doi.org/10.1038/s41586-018-0805-8),\n- Murray, N. J., Phinn, S. P., Fuller, R. A., DeWitt, M., Ferrari, R.,\n Johnston, R., Clinton, N., \\& Lyons, M. B. (2022). High-resolution global\n maps of tidal flat ecosystems from 1984 to 2019. Scientific Data,\n 9(1).\n [doi:10.1038/s41597-022-01635-5](https://doi.org/10.1038/s41597-022-01635-5),\n\n### DOIs\n\n- \u003chttps://doi.org/10.1038/s41586-018-0805-8\u003e\n\n### Explore with Earth Engine\n\n| **Important:** Earth Engine is a platform for petabyte-scale scientific analysis and visualization of geospatial datasets, both for public benefit and for business and government users. Earth Engine is free to use for research, education, and nonprofit use. To get started, please [register for Earth Engine access.](https://console.cloud.google.com/earth-engine)\n\n### Code Editor (JavaScript)\n\n```javascript\nvar dataset = ee.ImageCollection('UQ/murray/Intertidal/v1_1/global_intertidal');\n\nvar visualization = {\n bands: ['classification'],\n min: 0,\n max: 1,\n palette: ['0000ff']\n};\n\nMap.setCenter(126.6339, 37.4394, 10);\n\nMap.addLayer(dataset, visualization, 'Intertidal areas');\n```\n[Open in Code Editor](https://code.earthengine.google.com/?scriptPath=Examples:Datasets/UQ/UQ_murray_Intertidal_v1_1_global_intertidal) \n[Murray Global Intertidal Change Classification](/earth-engine/datasets/catalog/UQ_murray_Intertidal_v1_1_global_intertidal) \nThe Murray Global Intertidal Change Dataset contains global maps of tidal flat ecosystems produced via a supervised classification of 707,528 Landsat Archive images. Each pixel was classified into tidal flat, permanent water or other with reference to a globally distributed set of training data. The classification was implemented along the ... \nUQ/murray/Intertidal/v1_1/global_intertidal, coastal,google,intertidal,landsat-derived,murray,surface-ground-water,tidal-flats,uq \n1984-01-01T00:00:00Z/2017-01-01T00:00:00Z \n-60 -180 60 180 \nGoogle Earth Engine \nhttps://developers.google.com/earth-engine/datasets\n\n- [https://doi.org/10.1038/s41586-018-0805-8](https://doi.org/https://intertidal.app)\n- [https://doi.org/10.1038/s41586-018-0805-8](https://doi.org/https://developers.google.com/earth-engine/datasets/catalog/UQ_murray_Intertidal_v1_1_global_intertidal)"]]